A new type of Archaeopteryx fossil helps build the case for this creature being called 'the first bird'.

The composition of black and white in a magpie’s poo differs between species. Some splatter more of the uric acid (white), some have more black (indigestible solids). It depends on their diet.
Gisela Kaplan
October 24, 2018

Not all birds have eyes on the sides of their heads – but even those that do can see straight in front of them.

Could music one day be something we experience through augmented reality, responding to the way we move through the world? Sound supplemented with colours and shapes?
Mavis Wong/The Conversation NY-BD-CC
August 30, 2018

Rivers are natural boundaries for evolving populations. But scientists don't agree whether they create new species or just help maintain them. Research using birds' molecular clocks provides some answers.